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https://opencores.org/ocsvn/ha1588/ha1588/trunk
[/] [ha1588/] [trunk/] [rtl/] [tsu/] [ptp_parser.v] - Diff between revs 52 and 56
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| Rev 52 |
Rev 56 |
| Line 33... |
Line 33... |
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output reg ptp_found,
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output reg ptp_found,
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output reg [31:0] ptp_infor
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output reg [31:0] ptp_infor
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);
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);
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parameter c_vlan_tpid_1 = 16'h8100;
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parameter c_vlan_tpid_2 = 16'h88a8;
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parameter c_vlan_tpid_3 = 16'h9100;
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reg [31:0] int_data_d1;
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reg [31:0] int_data_d1;
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always @(posedge rst or posedge clk) begin
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always @(posedge rst or posedge clk) begin
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if (rst) begin
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if (rst) begin
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int_data_d1 <= 32'h00000000;
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int_data_d1 <= 32'h00000000;
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end
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end
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| Line 109... |
Line 113... |
ptp_l4 <= 1'b0;
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ptp_l4 <= 1'b0;
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ptp_event <= 1'b0;
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ptp_event <= 1'b0;
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end
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end
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else begin
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else begin
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// bypass vlan
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// bypass vlan
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if (int_valid && int_cnt==10'd4 && int_data[31:16]==16'h8100) // ether_type == cvlan
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if (int_valid && int_cnt==10'd4 && (int_data[31:16]==c_vlan_tpid_1 || int_data[31:16]==c_vlan_tpid_2 || int_data[31:16]==c_vlan_tpid_3)) // ether_type == vlan
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bypass_vlan <= 1'b1;
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else if (int_valid && int_cnt==10'd4 && int_data[31:16]==16'h9100) // ether_type == svlan
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bypass_vlan <= 1'b1;
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bypass_vlan <= 1'b1;
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else if (int_valid && int_cnt==10'd5 && int_data[31:16]==16'h8100 && bypass_vlan) // svlan_type == cvlan
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else if (int_valid && int_cnt==10'd5 && (int_data[31:16]==c_vlan_tpid_1 || int_data[31:16]==c_vlan_tpid_2 || int_data[31:16]==c_vlan_tpid_3) && bypass_vlan) // vlan_type == vlan
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bypass_vlan <= 1'b1;
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bypass_vlan <= 1'b1;
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else if (int_valid && bypass_vlan)
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else if (int_valid && bypass_vlan)
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bypass_vlan <= 1'b0;
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bypass_vlan <= 1'b0;
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// bypass mpls
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// bypass mpls
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